对用于重型原油加工的材料的腐蚀性能进行实验评估
Raúl González-Durán1, Alvaro Rodríguez-Prieto1, Ana María Camacho1
1Department of Manufacturing Engineering, UNED, 28040 Madrid, Spain.
Materials (Basel, Switzerland)
|November 9, 2024
概括
这项研究评估了金属合金在重型原油加工中的性能. AISI-SAE 316Ti表现出极好的耐腐蚀性,使其成为炼油厂压力容器和管道的合适选择.
科学领域:
- 材料科学 材料科学 材料科学
- 腐蚀工程 腐蚀工程
- 石油精炼 石油精炼 石油精炼
背景情况:
- 由于复杂的成分和恶劣的条件,重型原油加工带来安全风险.
- 固定设备如压力容器和管道的腐蚀是炼油厂的一个主要问题.
研究的目的:
- 评估三种金属合金 (5Cr-1/2Mo/ASTM A335GP5,AISI-SAE 316Ti和Monel 400) 在接触重型原油时的高温性能.
- 为了确定硫化合物和有机酸对合金腐蚀的影响.
- 为炼油厂压力容器和管道提出合适的替代材料.
主要方法:
- 在两种重型原油 (A和B) 中对三种金属合金进行腐蚀试验,温度为200,250和300°C.
- 模拟的炼油厂条件使用动态自闭槽在200psi和600rpm.
- 分析腐蚀动力学和材料性能.
主要成果:
- AISI-SAE 316Ti的腐蚀率较低 (0.20.87 mpy),这表明它的抗性很高.
- 莫内尔400显示出显著的腐蚀 (高达74.89万年),特别是在300°C.
- 在测试温度下,ASTM A335GP5显示了中等的腐蚀率 (2.045.57 mpy).
结论:
- 由于其优越的耐腐蚀性,AISI-SAE 316Ti 是重型原油加工中的压力容器和管道的有希望的候选者.
- 材料选择对于确保在苛刻条件下运行的炼油设备的完整性和安全性至关重要.
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